National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Platteville Municipal Airport (KPVB)

Lat: 42.69°NLon: 90.44°WElev: 1020ft.

Overcast

67°F

19°C

Humidity 94%
Wind Speed Calm
Barometer 30.13 in
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Last update 6 Aug 8:35 am CDT
Extended Forecast for

Potosi WI

  • Today

    Today: Mostly sunny, with a high near 81. Calm wind.

    High: 81 °F

    Mostly Sunny

  • Tonight

    Tonight: Patchy fog after 4am. Otherwise, partly cloudy, with a low around 63. Calm wind.

    Low: 63 °F

    Mostly Clear
    then Patchy
    Fog

  • Friday

    Friday: A 20 percent chance of showers after 4pm. Partly sunny, with a high near 84. Light south wind becoming southwest 5 to 10 mph in the morning.

    High: 84 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Friday Night

    Friday Night: A 50 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 64. Southwest wind 5 to 8 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 64 °F

    Chance
    T-storms

  • Saturday

    Saturday: Sunny, with a high near 82. Northwest wind around 6 mph becoming calm.

    High: 82 °F

    Sunny

  • Saturday Night

    Saturday Night: Showers and thunderstorms likely, mainly after 1am. Mostly cloudy, with a low around 66. South wind 3 to 5 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 66 °F

    Slight Chance
    T-storms then
    T-storms
    Likely

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 84. South wind around 6 mph.

    High: 84 °F

    Chance
    T-storms

  • Sunday Night

    Sunday Night: A slight chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 68. Calm wind becoming east 5 to 8 mph after midnight. Chance of precipitation is 60%.

    Low: 68 °F

    Slight Chance
    T-storms then
    Showers
    Likely

  • Monday

    Monday: Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 84. Southeast wind 9 to 13 mph becoming west in the afternoon. Chance of precipitation is 60%.

    High: 84 °F

    Showers
    Likely

Detailed Forecast

Today
Mostly sunny, with a high near 81. Calm wind.
Tonight
Patchy fog after 4am. Otherwise, partly cloudy, with a low around 63. Calm wind.
Friday
A 20 percent chance of showers after 4pm. Partly sunny, with a high near 84. Light south wind becoming southwest 5 to 10 mph in the morning.
Friday Night
A 50 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 64. Southwest wind 5 to 8 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
Sunny, with a high near 82. Northwest wind around 6 mph becoming calm.
Saturday Night
Showers and thunderstorms likely, mainly after 1am. Mostly cloudy, with a low around 66. South wind 3 to 5 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Sunday
A 30 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 84. South wind around 6 mph.
Sunday Night
A slight chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 68. Calm wind becoming east 5 to 8 mph after midnight. Chance of precipitation is 60%.
Monday
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 84. Southeast wind 9 to 13 mph becoming west in the afternoon. Chance of precipitation is 60%.
Monday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 66. Northwest wind 5 to 7 mph becoming light and variable after midnight. Chance of precipitation is 40%.
Tuesday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 81. Northeast wind 3 to 5 mph.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 63. Light east wind.
Wednesday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 79. Calm wind becoming west around 5 mph in the afternoon.
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ABOUT THIS FORECAST

 
Point Forecast:
Potosi WI
 42.69°N 90.72°W
Last Update:
6:06 am CDT Aug 6, 2026
Forecast Valid:
9am CDT Aug 6, 2026-6pm CDT Aug 12, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation